Dark web monitoring
Dark web monitoring for your company's domains.
BreachDetect watches the dark-web markets, forums and Telegram channels where stealer logs and breach dumps are traded, and alerts your team when logins for your domains turn up.
44 billion
stealer-log records
37 million
infected machines
16.3 billion
breach records
808
breached databases
Tens of millions of records are added every day.
Why logins are what to watch
Stolen logins are involved in 39% of breaches, according to Verizon's 2026 Data Breach Investigations Report. When we checked 99 well-known companies on 30 October 2026, every one had employee logins posted in the last 90 days, and 75 had a leaked login for their own sign-on systems. Read the study.
What we watch
Stealer logs
Passwords, session cookies and the site each one was saved for, copied off infected computers by malware such as RedLine, Lumma, Raccoon and Vidar.
Breach dumps and combolists
Databases leaked from breached websites, and the password lists cut from them. These catch staff who signed up somewhere else with a work address.
Where they're traded
Dark-web markets, cybercrime forums and Telegram channels. We collect from them every day.
How monitoring works
- 01Add your domains
Add the email domains your staff use. Subdomains are included, and you verify you own each domain before full results are shown.
- 02We check every new log
Each stealer log and breach dump we collect is checked against your domains, around the clock.
- 03Your team gets an alert
When new leaked logins for your domains show up, your team gets the details: the login, the password, the site it was for, when it was posted and where.
- 04You close the access
Reset the password, revoke sessions and check the device it came from. Alerts don't use your daily search allowance.
A login from a stealer log usually means a device is infected, so a password reset isn't enough on its own. Here's what to do in the first 24 hours.
What it covers
BreachDetect is built around leaked logins and sessions. It doesn't track mentions of your brand, lookalike domains or ransomware leak sites, and no one can get data removed from a criminal market. What it does is tell you early, while you can still close the access.
Questions
What is dark web monitoring?
Dark web monitoring means continuously checking criminal markets, forums and chat channels for your company's data, so you hear about a leak before someone uses it. For most companies the data that matters is logins: employee usernames, passwords and session cookies.
How is this different from Have I Been Pwned?
Have I Been Pwned is a good free first step. It covers known breaches and some stealer logs, and it never shows passwords. BreachDetect searches 44 billion stealer-log records alongside breach data, shows which of your own sign-in pages each login was for, and includes the passwords on paid plans so you can tell which logins still work.
Do we need to install anything?
No. Monitoring works from your email domains, so there's nothing to install on staff computers.
Can an MSP monitor its clients' domains?
Yes, on the Business and Enterprise plans. Each client domain needs your client's written permission.
How much does it cost?
Plans start at $124 a month billed yearly, or $149 billed monthly. Every plan includes monitoring, alerts, the API and unlimited seats.
Can we try it first?
Yes. Search any company domain free, with no account, to see what we hold with the details hidden. Yearly plans also come with a 14-day money-back guarantee.